This Lisle Torx Bit Set (9 - 26550) is a 9-piece set of Torx bits made from high-grade steel for superior durability and strength. The set includes T10, T15, T20, T25, T27, T30, T40, T45, and T50 Torx bits with a 1/4 hex shank for use with most power drills. The bits are designed to fit all Torx-style fasteners and feature a black oxide finish for corrosion resistance.